RECON: TNO occultation with 14QY441

Event between 14QY441 and star UC4-564-013717 with event index number of 179080

Geocentric closest approach at 2019/01/23 09:08:57 UTC

J2000 position of star is 05:06:08.9 +22:40:34
Equinox of date position of star is 05:07:11.9 +22:41:54
Stellar brightness R=12.6, use SENSEUP=16
Star is 76 degrees from the moon. Moon is 93% illuminated.
TNO apparent brightness V=21.5

[RECON map]
TNO is 37.7 AU from the Sun and 37.0 AU from the Earth.
The TNO is moving 16.8 km/sec on the sky relative to the star, or, 2.3 arcsec/hr.
The 1-sigma error in the time of the event is 185 seconds.
The 1-sigma cross-track error in the shadow position is 1568 km.
The sky-plane scale is 26835.5 km/arcsec.

The TNO has an absolute magnitude Hv=5.6
Diameter=457.1 km assuming a 5% albedo -- 27.2 sec chord
Diameter=186.6 km assuming a 30% albedo -- 11.1 sec chord
Dynamical classification is 4:3E
 
 
 
 
 
 

Star training set for 14QY441, (2019/01/23 09:09UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:01.0 +16:32:46  0.8  9.42  84
Alnath         05:27:29.9 +28:37:19  1.6  7.47  71
PPM 094053     05:06:46.9 +23:05:09  6.5  0.40  76
PPM 094066     05:07:49.8 +22:32:05  7.0  0.21  76
PPM 094061     05:07:12.5 +22:41:05 10.8  0.03  76
14QY441        05:07:17.9 +22:42:02 12.6        76
Positions are for equinox of date

This table contains the target star visibility for the RECON network. The observing range has been set to a maximum of 4.9 sigma about the mid-time.
The median site spacing is 20.8 km RECON observability=1.0 and success probability=6.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 09:05:05 -58.5 Dark Up 34.6 265.4 Up 08:50:05 - 09:20:05 4267
Tonasket 09:05:04 -58.7 Dark Up 34.7 265.6 Up 08:50:04 - 09:20:04 4247
Okanogan 09:05:03 -59.0 Dark Up 34.8 265.7 Up 08:50:03 - 09:20:03 4215
Brewster 09:05:02 -59.3 Dark Up 35.0 265.7 Up 08:50:02 - 09:20:02 4187
Manson/Chelan 09:05:02 -59.6 Dark Up 35.2 265.6 Up 08:50:02 - 09:20:02 4160
Entiat 09:05:02 -59.9 Dark Up 35.3 265.7 Up 08:50:02 - 09:20:02 4139
Wenatchee 09:05:01 -60.1 Dark Up 35.4 265.8 Up 08:50:01 - 09:20:01 4114
Ellensburg 09:04:59 -60.6 Dark Up 35.6 265.9 Up 08:49:59 - 09:19:59 4073
Pasco 09:04:54 -60.8 Dark Up 34.6 267.5 Up 08:49:54 - 09:19:54 4042
Yakima 09:04:58 -60.9 Dark Up 35.6 266.2 Up 08:49:58 - 09:19:58 4037
PNWRO 09:04:52 -60.9 Dark Up 34.5 267.8 Up 08:49:52 - 09:19:52 4026
Toppenish/White Swan 09:04:57 -61.1 Dark Up 35.5 266.4 Up 08:49:57 - 09:19:57 4022
George/Umatilla 09:04:52 -61.2 Dark Up 34.8 267.5 Up 08:49:52 - 09:19:52 4007
Goldendale 09:04:55 -61.7 Dark Up 35.8 266.5 Up 08:49:55 - 09:19:55 3962
The Dalles 09:04:55 -62.0 Dark Up 36.1 266.4 Up 08:49:55 - 09:19:55 3933
Maupin 09:04:54 -62.4 Dark Up 36.1 266.8 Up 08:49:54 - 09:19:54 3898
Niwot 09:04:05 -58.4 Dark Up 24.2 280.0 Low 08:49:05 - 09:19:05 3897
Madras/Culver 09:04:52 -62.9 Dark Up 36.1 267.2 Up 08:49:52 - 09:19:52 3848
Redmond 09:04:51 -63.2 Dark Up 36.2 267.4 Up 08:49:51 - 09:19:51 3814
Sisters 09:04:51 -63.3 Dark Up 36.5 267.1 Up 08:49:51 - 09:19:51 3806
Bend 09:04:51 -63.5 Dark Up 36.3 267.4 Up 08:49:51 - 09:19:51 3791
Oregon Observatory 09:04:50 -63.7 Dark Up 36.4 267.5 Up 08:49:50 - 09:19:50 3772
La Pine/Gilchrist 09:04:50 -63.9 Dark Up 36.4 267.6 Up 08:49:50 - 09:19:50 3752
North Lake 09:04:46 -64.1 Dark Up 36.0 268.3 Up 08:49:46 - 09:19:46 3728
Paisley 09:04:43 -64.4 Dark Up 35.8 268.9 Up 08:49:43 - 09:19:43 3686
Lakeview 09:04:41 -64.8 Dark Up 35.7 269.4 Up 08:49:41 - 09:19:41 3645
Chiloquin 09:04:46 -65.0 Dark Up 36.8 268.1 Up 08:49:46 - 09:19:46 3640
Klamath Falls 09:04:44 -65.3 Dark Up 36.7 268.4 Up 08:49:44 - 09:19:44 3611
Tulelake 09:04:43 -65.4 Dark Up 36.5 268.8 Up 08:49:43 - 09:19:43 3594
Cedarville 09:04:38 -65.3 Dark Up 35.5 270.0 Up 08:49:38 - 09:19:38 3588
Fall River/Burney 09:04:40 -66.2 Dark Up 36.5 269.6 Up 08:49:40 - 09:19:40 3511
Susanville 09:04:35 -66.5 Dark Up 35.9 270.5 Up 08:49:35 - 09:19:35 3471
Gimple 09:04:35 -66.8 Dark Up 36.1 270.6 Up 08:49:35 - 09:19:35 3439
Greenville 09:04:35 -66.8 Dark Up 36.1 270.5 Up 08:49:35 - 09:19:35 3437
Portola 09:04:33 -66.9 Dark Up 35.8 271.0 Up 08:49:33 - 09:19:33 3420
Quincy 09:04:34 -67.0 Dark Up 36.1 270.6 Up 08:49:34 - 09:19:34 3418
Reno 09:04:30 -66.9 Dark Up 35.3 271.6 Up 08:49:30 - 09:19:30 3412
Carson City 09:04:29 -67.1 Dark Up 35.2 271.9 Up 08:49:29 - 09:19:29 3379
Yerington 09:04:26 -67.0 Dark Up 34.8 272.4 Up 08:49:26 - 09:19:26 3378
Gardnerville 09:04:28 -67.3 Dark Up 35.2 272.1 Up 08:49:28 - 09:19:28 3357
Hawthorne 09:04:23 -67.2 Dark Up 34.3 273.0 Up 08:49:23 - 09:19:23 3349
Tonopah 09:04:18 -66.8 Dark Up 33.2 274.2 Up 08:49:18 - 09:19:18 3346
Lee Vining 09:04:23 -67.8 Dark Up 34.7 273.1 Up 08:49:23 - 09:19:23 3282
Indian Springs 09:04:10 -67.1 Dark Up 31.9 276.0 Up 08:49:10 - 09:19:10 3250
Beatty 09:04:14 -67.4 Dark Up 32.8 275.2 Up 08:49:14 - 09:19:14 3249
Bishop 09:04:19 -68.0 Dark Up 34.1 274.0 Up 08:49:19 - 09:19:19 3245
Henderson 09:04:07 -67.0 Dark Up 31.3 276.7 Up 08:49:07 - 09:19:07 3220
Patrick 09:04:02 -66.7 Dark Up 30.3 277.6 Up 08:49:02 - 09:19:02 3195
DCO 09:04:00 -66.5 Dark Up 29.7 278.1 Low 08:49:00 - 09:19:00 3188
Lone Pine 09:04:15 -68.4 Dark Up 33.8 274.6 Up 08:49:15 - 09:19:15 3182
Kingman/Dolan Springs 09:04:01 -67.0 Dark Up 30.4 277.6 Up 08:49:01 - 09:19:01 3168
Searchlight/Boulder City 09:04:04 -67.4 Dark Up 31.2 277.0 Up 08:49:04 - 09:19:04 3167
Laughlin/Bullhead City 09:04:03 -67.3 Dark Up 30.9 277.4 Up 08:49:03 - 09:19:03 3149
Mohave Valley 09:04:02 -67.5 Dark Up 30.8 277.5 Up 08:49:02 - 09:19:02 3123
Lake Havasu City 09:04:00 -67.6 Dark Up 30.6 277.9 Up 08:49:00 - 09:19:00 3092
Parker 09:04:00 -67.8 Dark Up 30.5 278.1 Up 08:49:00 - 09:19:00 3059
Blythe 09:03:59 -68.3 Dark Up 30.7 278.3 Up 08:48:59 - 09:18:59 2999
CPSLO 09:04:18 -70.7 Dark Up 35.8 274.1 Up 08:49:18 - 09:19:18 2980
Idyllwild 09:04:03 -69.6 Dark Up 32.4 277.2 Up 08:49:03 - 09:19:03 2945
Wildwood 09:04:09 -70.5 Dark Up 34.0 276.0 Up 08:49:09 - 09:19:09 2923
Calipatria 09:03:59 -69.2 Dark Up 31.4 278.1 Up 08:48:59 - 09:18:59 2922
Yuma 09:03:56 -68.9 Dark Up 30.6 278.8 Up 08:48:56 - 09:18:56 2908

Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.

Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.

Star training set for 14QY441, (2019/01/23 09:09UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8  9.42  84
Alnath         05:26:17.5 +28:36:24  1.6  7.47  71
PPM 094053     05:05:37.7 +23:03:40  6.5  0.40  76
PPM 094066     05:06:40.9 +22:30:38  7.0  0.21  76
PPM 094061     05:06:03.6 +22:39:36 10.8  0.03  76
14QY441        05:06:08.9 +22:40:34 12.6        76
Positions are for J2000

Event circumstances last updated at 2017/05/20 18:09:06 UT

Marc W. Buie, Southwest Research Institute

RECON